Company lists · Data verified August 2026

Top 25 Customer retention software companies based in the United Kingdom

Name: Customer retention software companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 154 companies tracked

There are 154 customer retention software companies headquartered in the United Kingdom (RevenueBase, August 2026). RevenueBase tracks 6,746 professional contacts across them, including 3,342 with verified work emails and 1,765 with mobile numbers. London is the largest hub.

This list covers customer retention software companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

154Companies

6,746Contacts tracked

3,342Verified emails

1,765Mobile numbers

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The 25 largest customer retention software companies based in the United Kingdom

Ranked by team size

Top 25 of 154 customer retention software companies based in the United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	BRAZE	London	1,001-5,000	2,133	1,457
2	TLC Worldwide	London	201-500	986	197
3	Iterable	London	501-1,000	766	489
4	On24	London	501-1,000	623	319
5	Jade Software Corporation	n/a	201-500	356	140
6	Sagacity	London	51-200	148	105
7	Ometria	London	51-200	135	98
8	Kognitiv Corporation	London	201-500	115	3
9	Antavo AI Loyalty Cloud	London	51-200	113	73
10	Spotler UK	Guildford	51-200	84	18
11	HTK An ITA Group Company	Ipswich	11-50	75	12
12	Netmera	n/a	51-200	57	35
13	PLINC	London	51-200	56	32
14	Bidnamic	Leeds	51-200	53	29
15	Engage HUB	London	51-200	48	34
16	Kaizen Loyalty	London	11-50	45	29
17	Countly	London	51-200	40	1
18	Rapier AI Analytics	London	11-50	39	8
19	Ecrebo	Reading	51-200	35	26
20	Lumata	London	201-500	33	1
21	Rocket	Brighton	51-200	25	2
22	For-Sight	Edinburgh	11-50	23	14
23	Cloudinteract	London	11-50	19	16
24	Zzgtech	London	11-50	18	8
25	Campaigner	North Shields	51-200	16	6

Showing 25 of 154 customer retention software companies based in the United Kingdom

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Customer retention software companies based in the United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 90 HQs

1,765Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Customer retention software companies by metro

Metro	Companies
Customer retention software companies in London	90
Customer retention software companies in Manchester	4
Customer retention software companies in Belfast	3
Customer retention software companies in Edinburgh	3
Customer retention software companies in Bristol	3
Customer retention software companies in Southampton	2
Customer retention software companies in Newcastle	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “customer retention software companies”, with match quality audited by blind human judging, and headquartered in the United Kingdom.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Contact records re-verify on a rolling cadence; 2 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many customer retention software companies are there based in the United Kingdom?

There are 154 customer retention software companies headquartered in the United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

BRAZE, headquartered in London, tops this list with the largest team on record.

Which city has the most customer retention software companies?

London leads with 90 headquartered companies, followed by Manchester (4) and Belfast (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,342 verified decision-maker contacts tracked across these 154 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph, the same data that powers RevenueBase's B2B data products and the free research portal.